ComplianceNIST 800-53 enhancement
NIST-SC-45(2) Secondary Authoritative Time Source
- Framework
- NIST SP 800-53 rev5 (5.2.0)
- Family
- SC System and Communications Protection
- Control
- SC-45(2)
Control statement
(a) Identify a secondary authoritative time source that is in a different geographic region than the primary authoritative time source; and
(b) Synchronize the internal system clocks to the secondary authoritative time source if the primary authoritative time source is unavailable.
Discussion
It may be necessary to employ geolocation information to determine that the secondary authoritative time source is in a different geographic region.
Related
Enhancement of · Compliance (1)
- NIST-SC-45 System Time Synchronization NIST 800-53 control